Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities
Net loss	$ (4,724,995)	$ (3,826,127)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property, plant and equipment	156,464	208,290
Amortization of customer intangible assets	0	6,000
Stock-based compensation, net	272,653	156,792
Equity in (gain) loss of investee company	(23,655)	47,708
Provision for inventory reserve	140,690	0
Gain on sale of property and equipment	(8,432)	0
Interest accreted on note receivable	(3,024)	(3,025)
Gain on bargain purchase	0	(76,437)
Changes in assets and liabilities
Accounts receivable	(264,078)	(21,926)
Inventories	(68,035)	(1,085,700)
Prepaids and other current assets	60,441	(392,407)
Deferred PPA project costs	5,174,290	0
Deferred customer project costs	304,229	(137,124)
Project assets	516,017	(2,198,770)
Accounts payable	(119,542)	339,695
Accrued expenses	579,447	(416,930)
Customer deposits	196,417	35,964
Accrued compensation and benefits	66,895	70,004
Deferred revenue	422,638	13,290,000
Other long-term liabilities	137,983	0
Net cash provided by operating activities	2,816,403	5,996,007
Cash flows from investing activities
Cash paid for business combination	0	(225,829)
Change in restricted cash	0	(15)
Expenditures for property and equipment	(9,149)	0
Proceeds from sale of property and equipment	9,754	0
Net cash provided by (used in) investing activities	605	(225,844)
Cash flows from financing activities
Payment of financing costs	0	(261,982)
Repayments of long-term debt	(82,236)	(80,222)
Proceeds from issuance of preferred stock	0	13,300,000
Proceeds from issuance of common stock	0	6,800,000
Contributions of capital from noncontrolling interest	0	45,000
Net cash (used in) provided by financing activities	(82,236)	19,802,796
Effect of exchange rate changes on cash and cash equivalents	(683)	(2,062)
Net increase in cash and cash equivalents	2,734,089	25,570,897
Cash and cash equivalents - beginning of period	17,189,089	10,757,461
Cash and cash equivalents - end of period	19,923,178	36,328,358
Supplemental disclosures of cash flow information:
Cash paid for interest	10,520	15,241
Supplemental noncash information:
Right of use asset obtained in exchange for new operating lease	$ 102,943	$ 0